Curtain color and lighting program in broiler production: II. carcass and parts yield and abdominal fat deposition

Revista Brasileira de Zootecnia

Valéria Maria Nascimento Abreu¹  Paulo Giovanni De Abreu¹  Arlei Coldebella¹  Fátima Regina Ferreira Jaenisch¹  Doralice Pedroso De Paiva¹ 

关键词: breast blister;    breast yield;    foot pad blister;    intermittent;    leg yield;    nearly continuous;   

DOI  :  10.1590/S1516-35982011000900027

来源: SciELO

【 摘 要 】

The objective of the present study was to evaluate carcass and parts' yield, abdominal fat deposition and breast and foot pad blisters of broilers reared under two lighting programs (nearly continuous or intermittent) in broilers houses with yellow and blue curtains. The experiment was conducted between June, 2004 and May, 2005. Six flocks were sequentially housed in four 12 × 10 m broiler houses divided into 4 pens with 200 birds each. The litter was reused six times or until flock 6. A completely randomized design in a 6 × 2 × 2 factorial arrangement (flocks, lighting programs, curtains) with four replicates per treatment was applied. A total of 288 birds were evaluated for carcass yield. Curtain color did not affect carcass or parts' yield. The effect of lighting program and curtain color on carcass yield may depend on other factors related to flock. Intermittent lighting program promoted the highest drumstick and thigh yields. Lighting programs and curtain colors did not affect abdominal fat deposition or the presence of breast and foot pad blisters.

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